Example #1
0
        // final method that handles msg from the source, whether it's from wndproc or callbacks
        void HandleSourceMsg(Message msg)
        {
            PlatformInfo.Current.Log.Debug("Got TWAIN msg " + msg);
            switch (msg)
            {
            case Message.XferReady:
                if (State < 6)
                {
                    State = 6;
                }
                TransferLogic.DoTransferRoutine(this);
                break;

            case Message.DeviceEvent:
                TWDeviceEvent de;
                var           rc = ((ITwainSessionInternal)this).DGControl.DeviceEvent.Get(out de);
                if (rc == ReturnCode.Success)
                {
                    SafeSyncableRaiseOnEvent(OnDeviceEvent, DeviceEvent, new DeviceEventArgs(de));
                }
                break;

            case Message.CloseDSReq:
            case Message.CloseDSOK:
                DisableReason = msg;
                // even though it says closeDS it's really disable.
                // dsok is sent if source is enabled with uionly

                // some sources send this at other states so do a step down
                if (State > 5)
                {
                    // rather than do a close here let the transfer logic handle the close down now
                    //ForceStepDown(4);
                    _closeRequested = true;
                }
                else if (State == 5)
                {
                    // needs this state check since some source sends this more than once
                    ((ITwainSessionInternal)this).DisableSource();
                }
                break;
            }
        }